<!DOCTYPE html>
<html>
  <head>
    <meta charset="UTF-8">
    <style>
      div {
        width: 200px;
        height: 100px;
        background-color: red;

        -webkit-transform: rotate(60deg); /* Chrome */
        transform: rotate(60deg);
      }
    </style>
  </head>
  <body>
    <div></div>
  </body>
</html>
